At WWDC 2021, Apple introduces a lot of new features and many of these features are really worrying for developers, because their products can be “killed” by Apple. Zoom (and other video conferencing applications) It’s hard to imagine a tool as useful during a pandemic as a video calling and conferencing app (with the exception of soap and sanitizer). We’ve all spent countless hours on Zoom, Skype, and Google Meet working, and when it’s done, many of us turn to Apple’s FaceTime to chat with family at home. FaceTime on Android and Windows With its simplicity, even the elderly can easily use FaceTime, but it is too simple to use in the company. With iOS 15, iPadOS 15, and macOS Monterey, FaceTime is about to rival Zoom, with grace features that allow voice enhancement while eliminating background noise, and the ability to create and schedule links in advance. FaceTime calls. Most importantly, Windows and Android users can also participate in FaceTime calls through the web interface, thus no longer relying on Apple hardware. Citymapper Citymapper Traveling on public transport in a city you’ve never been to can be a daunting challenge. Not only do you have to figure out which trains or buses to take, but you also have to know when to get off to get to your desired destination. That’s why there are apps like Citymapper, which function like satellites for subways, buses and trains. But in iOS 15, Apple is incorporating similar functionality into Maps to convince iPhone users not to use Google Maps instead. Not only will you see the progress of your vehicle updated in real time, you’ll also get advanced alerts on when you need to get off and then directions to where you need to go. you back on the road. Peloton Artist Series Training Program Nothing motivates you to work out like the perfect tracks and your favorite artists, which is what Peloton has leveraged in its Artist Series collaboration with celebrity: a series exercises in which the entire music is centered around a single artist as part of a formal partnership. With Fitness, Apple is aiming for Peloton’s success, and with the help of the company’s massive music streaming service, it will soon introduce the new Artist Spotlight Series, where workouts will feature an entire playlist. from a single artist. The first themed workouts will be based on the music catalog of Lady Gaga, Keith Urban, Alicia Keys and Jennifer Lopez. Multi-device keyboard and mouse iPhones and iPads have been compatible with wireless keyboards for years, making typing easier and helping turn both devices into true productivity tools. That’s led to makers of multi-device keyboards and mice that can quickly switch between controlling different devices — like laptops, phones, and tablets — through a single switch. simple change. With macOS Monterey, a new feature called Universal Control will make such accessories unnecessary for Apple users. A mouse and keyboard (or trackpad) can be used to not only control multiple devices, but control them all at once, when the pointer can move to another device’s screen. This feature takes it a step further and allows for easy dragging of files between Apple devices, simplifying the way iOS and macOS devices share documents. You may see this feature as “Mouse without Borders” on Windows, but the way Apple does it is much more intuitive and logical.

The sugarcane beetle species mainly include the black scarab, the brown beetle and the large brown hairy beetle, which often arise and cause strong damage in sandy soil, riverbank soil, soil with light mechanical composition, or on specialized cultivation areas, growing sugarcane for many years, not rotating crops with other crops. NASU technicians check for insects entering the lamp trap. Photo: NASU. The life cycle of these beetles lasts from 365 to 720 days, going through 4 stages: egg, larva (worm), pupa and adult. Over the years, Nghe An Sugarcane Company Limited (NASU) has researched and applied integrated measures to effectively manage sugarcane beetles in the company’s raw sugarcane areas. This is the result that NASU has studied the management of sugarcane beetles in many countries such as China, Thailand, Indonesia… to apply on NASU’s sugarcane material area. Mr. Nguyen Hoang Son Phong, engineer of NASU said that sugarcane field was damaged by beetle larvae, yield decreased by 13-54%, sugar decreased from 11-57%. The original cane is more severely damaged by beetles than silk cane. Larvae (larvae) hatch from eggs, live in the soil for an average of 240 – 480 days (larvae of the brown hairy beetle are larger, longer than the beetle species) before transitioning to the pupa and adult stage. During the development cycle, larvae are active in the ground, age 1 and 2 in addition to eating cane roots, also eat organic matter, humus, decayed organic fertilizer or bagasse. Light traps are quite simple but effective in killing beetles applied in the cane material area of ​​NASU. Photo: NASU. From the end of the age of 2, the larvae only feed on the roots and underground stems of sugarcane. The 3-year-old larvae have a long sexual development time and cause the most damage to sugarcane, making sugarcane unable to grow, withering, drying and dying, leading to a decrease in sugarcane and sugar yield. The more damage the harvest stage, the more obvious. When the 3-year-old larvae are full, they begin to build cocoons out of soil and pupate to stay in the cocoon. If the weather conditions are favorable, after about 20 days, the pupae will turn into an adult, break the cocoon and crawl to the ground. Unfavorable weather conditions, especially low soil moisture and low temperature, will prolong the pupal development time. This extended period, called the hibernation period, can last up to 4 months. Effective management of beetles According to the research as well as the process applied effectively at NASU, control beetle larvae by plowing the soil thoroughly before planting sugarcane, collecting larvae and spreading the granular insecticide Patox 4GR, with the amount of 40 kg/ha in rows when planting sugarcane. Beetles trapped in nets. Photo: NASU. However, the method of spraying granular pesticides into the soil, in addition to killing larvae, will destroy beneficial microorganisms and insects in the soil, affecting the soil environment. The adults of these sugarcane beetles tend to be strong with light, fly out to mate from March to May, after showers with an amount of over 20mm. This is the best time to kill adults, limit egg laying, and reduce later harm caused by larvae. Mr. Hoang Quoc Tiem, a long-time sugarcane grower in Dua village, Nghia Yen commune (Nghia Dan, Nghe An) said that in the spring crop of 2021, in addition to killing larvae when growing sugarcane, NASU has implemented additional measures to destroy them. maturity such as using lamp traps, casting nets, and making traps in the field. The light trap is designed to be able to install light bulbs from the grid, battery lights or solar power systems. Traps are made by taking advantage of plastic containers, above are lights, below are placed water, add diesel oil to prevent the adults from moving out of the trap. In the middle of the light trap, install 2 corrugated iron sheets of size 40 cm x 60 cm, perpendicular to each other. As adults, beetles are attracted to light, flying into traps will collide with corrugated iron and fall into the water. After the rainy nights of early summer, each light trap catches 250-300 brown beetle adults, 40-50 black beetle adults, and 20-30 large brown-haired clipping adults and lots of adults of other sugarcane borers. The “product” obtained after a night of light traps includes many different species of beetles and borers… Photo: NASU. In addition, on the field, a fishing net is installed, the size of the net is 1cm x 1cm, and the adults move hundreds of fish of all kinds after every night it rains. In the sugarcane field, from 50 – 100m, dig pit traps, measuring 30 cm deep x 60 cm long x 60 cm wide, below the manure and by-products, which are the preferred food of adults, mixed with drugs. Low-odor insecticide is Goldra so that when adults eat it, it will be destroyed. According to the research results of scientists, the female beetle species can lay an average of 229-328 eggs, the lowest hatching rate from eggs to larvae is 70%. With the method of killing adults from light traps and netting in the field, it will limit a lot of harm caused by larvae to sugarcane … Mr. Phan Van Toan, Director of Agricultural Extension of Nghe An Sugar Co., Ltd. said that with the above management method, the rate of damage of beetles on both silk and sugarcane fields is reduced. This is the money for the company to expand the model on the raw material area in the coming years to stabilize the material area and improve production efficiency for farmers.

Damien Desrocher, 28 years old from the town of Wahagnies, Northern France has a very unique and successful startup method. It is the production of soap bars from snail mucus. Desrocher started using snail mucus to make soap and sell it at the market in the town of Wahagnies, Northern France from December 2020 and received unexpected success. In order to collect a lot of snail mucus, the 28-year-old man had to think of many and extremely ingenious ways not to harm or kill any snails. Damien Desrocher shared: “I only use my fingers to touch the snails, it’s very light and doesn’t hurt them. It looks very simple, all the process depends on your ingenuity.” “Once you observe and see the behavior of snails, you will find they are really adorable. Snails are one of my favorite animals,” says Desrocher. On the feet of snails there is a type of gland that can secrete a very sticky fluid to help them move. Therefore, every place they crawl through leaves a sticky residue. After this sticky fluid dried, a sparkling watery streak was formed. This snail fluid is used to remove wrinkles and acne scars, which is loved by many women because it is really effective. One snail will produce about 2 grams of slime, while to make 15 100-gram Damien Desrocher bars of soap requires about 80 grams of snail mucus. Thus, with only 40 snails, Damien Desrocher was able to produce 15 bars of soap weighing 100 grams. Although novel in the West, snail mucus is a familiar beauty ingredient in Korea because of its anti-aging and skin-restoring properties – including collagen and elastin molecules – in it. The snail itself also uses the slime it secretes to repair the shell when damaged. Currently, Mr. Desrocher has a total of 60,000 snails. When entering the breeding season, most snails will be moved to a larger location to live, in the yard of only about 4,000 snails. With excellent nourishing ingredients, snail mucus helps to stimulate collagen and elastin formation, protect skin from free radicals, soothe skin, repair damaged tissues and restore hydration. It is also added to treat dry skin, wrinkles and stretch marks, acne and rosacea, age spots, burns, scars, razor bumps and even flat warts. The application of snail mucus actually began in ancient Greece, where the father of medicine Hippocrates prescribed snail grinding and yogurt to cure inflammation. Please watch the video: Top 10 Longest Living Animals on Earth. Source: Yan News

Their venom is made up of a mixture called peptide conus. Each of them will have a unique venom formula. More than 50,000 conus peptides have been discovered, they are all neurotoxins and no vertebrate species on our planet possesses this form of venom. Marbled Cone snail possesses an extremely splendid appearance but is considered the most venomous snail species on the planet. They are purely carnivores and predators, feeding mainly on sea worms, small fish, mollusks and even other cone snails. It can release venom at any time in its life, and this species is always ready to wipe out all living things around it. A cone snail, like most snails, moves slowly. However, its attack is extremely quick and powerful. They use a sophisticated detection system to find their prey. Snails eat fish, sea worms or other snails if food sources are scarce. Their secret to hunting doesn’t lie in movement speed, instead they hunt using venom and develop an extremely efficient venom system. Because of their slow movement speed, cone snails often hunt by “holding a tree waiting for a rabbit”, which will lie in the sand at the bottom of the water, only revealing its long tubular mouth and tentacles in the sand. Once it detects prey such as a small fish or something passing by, it will use strong muscle contractions to shoot the tongue connected with the venom gland from its long tubular mouth at lightning speed and “close the gap”. nail” into the body, injecting poison into the prey. This venom will paralyze prey within seconds and die instantly. To prevent their prey from struggling, some species of snails have created a toxin that can reduce pain and anesthetize the prey’s nerves, making the prey feel no pain and slowly die without even realizing it. know. When the prey is fixed and no longer struggling, the conch will withdraw the “hook” (toothed tongue), pulling the paralyzed prey into the mouth. One study estimated that this species alone caused 36 deaths. Divers are afraid to face the Marbled Cone snail. They are very beautiful, just like other normal snail shells, but when hit, they are very fast and even with diving gloves, the snail’s proboscis can still penetrate. A few microliters of the toxin in a snail’s saliva is strong enough to kill at least 10 people. Once the poison enters your system, you may not feel symptoms for several minutes or days. Although the bite is not painful, you may feel numbness or tingling. However, then your whole body may shake, your eyes will go blurry, and your breathing may stop after just a few hours. However, the function of this extremely toxic substance is only for self-defense and to catch prey, but they never actively attack humans. Up to now, about 30 people have died from accidental contact with the marbled cone’s spit. The life of the snail shell collector will end when the sharp hook of this snail pierces the person. The most powerful poison called neurotoxin will temporarily paralyze your nerves. After that, the respiratory organs will close, making it difficult for you to breathe and this can be the worst part. Symptoms of a snail sting include local pain, swelling, numbness, tingling, and vomiting. Symptoms may appear immediately or slowly over several days. In severe cases, muscle paralysis, vision changes and respiratory failure can lead to death. The various neurotoxins contained in cone snails are called cono toxins. In addition to being toxic to humans, in this venom mixture there are many beneficial substances, which can work accurately and quickly on the human nervous system without causing side effects. Therefore, this snail can also open up a new medical future for humans. For example, cono peptides have the potential to prevent spasticity caused by spinal cord injury and may help diagnose and treat small cell lung cancer. Conotoxins can immediately generate nerve signals that reduce heart rate or turn off pain receptors. Ziconotide isolated from it is used as an analgesic. It is said to be 1000 times more effective than morphine and not addictive. Conotoxin ACV1, isolated from Victoria cone cone in Australia, is more effective than morphine and Ziconotide, has a longer analgesic effect and is convenient to use without side effects. It has been shown to be very effective in the treatment of post-operative and neurological conditions, and even accelerates the recovery of nerve damage, and is expected to be developed as a treatment for anxiety. , Parkinson’s disease, muscle tension and hypertension.

This species is extremely toxic, it prefers to hide in coral reefs, rocks and sandy seabeds from intertidal to intertidal zones in southeastern China and tropical seas. Their bodies contain more than 200 pharmacologically active substances and a single drop of venom can kill 20 adults. To date there have been at least 100 recorded deaths from the venom of this species and the actual number could be much higher. The creature we are talking about here is the Cone Snail, also known as the cone snail, is a marine gastropod mollusk, so far more than 70 species have been found along the coast. along the coast of China and there are more than 1,000 species discovered in the world. Their venom is made up of a mixture called peptide conus. Each of them will have a unique venom formula. More than 50,000 conus peptides have been discovered, they are all neurotoxins and no vertebrate species on our planet possesses this form of venom. The Cone Snail has a mostly cone-shaped appearance and the largest can be 23 cm long. They are purely carnivores and predators, feeding mainly on sea worms, small fish, mollusks and even other cone snails. It can release venom at any time in its life, and this species is always ready to wipe out all living things around it. But surely you will find it difficult to understand because in our impression, snails are very slow-moving mollusks, how can they hunt, especially fast-moving species like fish? In fact, the secret to their hunting is not in their movement speed, instead they hunt by using their venom and developing an extremely efficient venom system. All cone snails are masters of poisons, likened to the five poisons in the animal kingdom. They have a tongue pocket in their throat, which contains many hollow toothed tongues, which resemble spearheads and are made of hard chitin. Because of their slow movement speed, cone snails often hunt by “holding a tree and waiting for rabbits”, which will lie in the sand at the bottom of the water, only revealing their long tubular mouth and tentacles in the sand. Once it detects prey such as a small fish or something passing by, it will use strong muscle contractions to shoot the tongue connected with the venom gland from its long tubular mouth at lightning speed and “close the gap”. nail” into the body, injecting poison into the prey. This venom will paralyze prey within seconds and die instantly. To prevent their prey from struggling, some species of snails have created a toxin that can reduce pain and anesthetize the prey’s nerves, making the prey feel no pain and slowly die without even realizing it. know. When the prey is fixed and no longer struggling, the conch will withdraw the “hook” (toothed tongue), pulling the paralyzed prey into the mouth. It’s worth noting that even when it’s not during mealtimes, if it feels threatened, the conch shells will shoot out without hesitation. So if you see brightly colored and beautiful cones on the beach, don’t stress. It came out by accident. Pick it up, especially the larger cone snails. This behavior can kill you because the conch’s nose can pierce the skin, gloves or wetsuit. Especially among cone snails, there is a species called Gastridium geographus, also known as geographical cone snail, killer snail, they are known as one of the most poisonous snails in the world, and one of the most dangerous snails in the world. marine animals that are extremely toxic to humans. One study estimated that this species alone caused 36 deaths. Symptoms of a snail sting include local pain, swelling, numbness, tingling, and vomiting. Symptoms may appear immediately or slowly over several days. In severe cases, muscle paralysis, vision changes and respiratory failure can lead to death. The various neurotoxins contained in cone snails are called cono toxins. In addition to being toxic to humans, in this venom mixture there are many beneficial substances, which can work accurately and quickly on the human nervous system without causing side effects. Therefore, this snail can also open up a new medical future for humans. For example, cono peptides have the potential to prevent spasticity caused by spinal cord injury and may help diagnose and treat small cell lung cancer. Conotoxins can immediately generate nerve signals that reduce heart rate or turn off pain receptors. Ziconotide isolated from it is used as an analgesic. It is said to be 1000 times more effective than morphine and not addictive. Conotoxin ACV1, isolated from Victoria cone cone in Australia, is more effective than morphine and Ziconotide, has a longer analgesic effect and is convenient to use without side effects. It has been shown to be very effective in the treatment of post-operative and neurological conditions, and even accelerates the recovery of nerve damage, and is expected to be developed as a treatment for anxiety. , Parkinson’s disease, muscle tension and hypertension.

Bald eagles prefer to live near large bodies of water such as lakes and oceans and in areas with a good supply of food to eat and trees to nest. They are found largely in North America including Canada, northern Mexico, Alaska and the United States. The bald eagle is a North American bird of prey that is one of the rulers of the North American skies. It is about 71 to 96 centimeters long, has a wingspan of 1.68 meters to 2.44 meters, and weighs between 3 and 6.3 kilograms. Those who like the bald eagle will surely be impressed by its wonderful appearance with its yellow eyes, beak, and feet; dark brown plumage and white head. This bird has a majestic and majestic appearance. Unlike other eagles that eat carrion, bald eagles have a very strong hunting ability, they fly in the air, run on land and can swim in water. Everything in its eyes can become prey of this bird. Records show that a bald eagle tried to grab a large brown bear by the nape of the neck, possibly because the opponent’s fur was too thick to “take action” so they had to give up. . Even the subterranean rulers of North America are seen as prey by them, which shows that they are extremely “big” birds and are considered to represent bravery. Therefore, the fact that the bald eagle can become the national banquet of the United States seems to be not difficult to speculate. However, things did not go so smoothly, because Benjamin Franklin, one of the founding members of the United States, considered it simply inappropriate to represent the image of the United States. Franklin believed that the choice of turkey as the national bird was preferable because they were hardy and strong, never surrendered without a fight, and represented the true American spirit. As for the bald eagle, Franklin once said in a letter that it has many bad qualities such as dishonesty and cowardice, even a species that likes to attack other small birds boldly. But it must be said that, although the bald eagle is brave and good at fighting, the selfishness and cruelty of this bird is undeniable. In a nest of young birds, the strongest will try their best to get food, which can cause their siblings to die from malnutrition; When food is scarce, the larger bird will even kill and eat other young birds directly in the nest. Not only that, bald eagles are also openly hostile to humans. They plunder the fisherman’s catch at sea, and on land kill herders’ lambs, even adult sheep. In 1983, the Wilson Gazette recorded a case in which a bald eagle killed a 60-kilogram pregnant sheep. The most unbelievable thing is that there are reports that this eagle even hunts children. Either way, in the past, people in the US have developed a hatred for this bird, and some local governments even offer rewards for hunting bald eagles. Along with the widespread use of the pesticide DDT in the last century, the eggshells of birds have become thinner and more fragile, as have habitat reductions, collisions with power lines, and other reasons. Elsewhere, the number of bald eagles has plummeted. In the 1950s, only 412 of the 48 states of the continental United States remained, of which Alaska killed about 70,000 bald eagles in the first 12 years of the 20th century. After a successful pairing, the bald eagle couple will choose a tall and sturdy tree, they will frame the tree underneath and outside with branches, and then spread thick weeds and other animal feathers to make a nest. . When they have free time, they will do nothing but look at their nest. This nesting behavior lasts for the rest of their lives (about 20 – 30 years), they will constantly repair and as a result their nests get bigger and heavier – becoming the largest bird’s nest on the planet , with an average diameter of about 2.5 meters to 4 meters. Especially with the nests weighing up to 1 ton, it is definitely an extremely luxurious residence among birds. The largest bald eagle nest found to date is near the city of St. Pittsburgh, Florida, 2.9m wide, 6.1m deep and weighs more than 2.7 tons, and obviously it has been included in the Guinness Book of World Records. Of course, not all bald eagle nests are centuries-old and highly durable homes. Due to inappropriate site selection, many nests are often destroyed by storms in less than 5 years, or broken down by branches.

Millennia later, scientists believe they have figured out why – a dense cloud of carbon dioxide causes animals that breathe it to suffocate. Dating back 2,200 years, the cave was rediscovered by archaeologists from the University of Salento in 2011. Simulation image of Plutonium It was located in a city called Hierapolis in ancient Phrygia, in what is now Turkey, and was used for animal sacrifices, which were bulls led through Plutonium, or the Gate of Pluto, the ancient god of the underworld – by the purified priests. The purified priests are sacrificing bulls As the priests led the bulls in, people could sit on high chairs above and watch the smoke billowing from the gate killing the animals. “ This space was so full of fog and dense that one could hardly see the ground. Any animal that goes inside is met with instant death. I threw the sparrows in and they immediately took their last breath and fell. ” wrote the Greek historian Strabo (64 BC – 24 AD). A photo showing dead birds at the entrance to “Hell’s Gate” It was this phenomenon that alerted the archaeological team to the location of the cave. Birds flying too close to the mouth of the cave suffocated and fell – indicating that, thousands of years later, it is still as deadly as ever. The culprit is seismic activity underground, according to volcanologist Hardy Pfanz of the University of Duisburg-Essen in Germany, who led a study of the cave’s gas in 2018. A fissure runs deep inside. below the area emitting a large amount of volcanic carbon dioxide. Today’s Status of Plutonium The team measured carbon dioxide levels in the area connected to the cave, and found that the gas – slightly heavier than air – forms a layer 40 centimeters (15.75 inches) above the floor. They found that the gas is scattered by the Sun during the day, but it is most dangerous at dawn after a night of accumulation. Concentrations that reach above 50% at the bottom of the lake, about 35% at 10 cm, can even kill a person – but, above 40 cm, concentrations drop rapidly. During the day, there was still some carbon dioxide about 5 centimeters high, as evidenced by dead bugs found by the team on the floor of the site. And inside the cave, they estimate CO2 concentrations consistently range from 86 to 91 percent, as neither the Sun nor the wind can enter. An inscription at the site indicates the hell gods Pluto and Kore. (Francesco D’Andria / University of Salento) The team notes in their paper that there is a strong touristic element to the place. Tourists could purchase small animals and birds that they could throw down for sacrifice, and on holidays larger animals were sacrificed by priests. “While the bull was standing in the lake with its mouth and nostrils 60 to 90 cm high, the large, mature priests (galli) always stood upright in the lake, ‘ the team wrote in their 2018 paper. Spectators will see large, strong bulls that can’t stand the smoke for a few minutes, while the priests remain strong and proud – a testament to the power of the gods and priests to perform. present to the people at that time. However, researchers believe that the priests were well aware of the characteristics of the cave and surrounding arena, and were able to conduct major sacrifices at dawn or dusk in the early days. Quiet day for maximum effect. Current status of the area They may also burrow their heads inside or into caves during midday ceremonies to demonstrate their abilities, holding their breath to endure. But the presence of oil lamps also suggests that priests approached the cave at night, according to the researcher who found it, Francesco D’Andria. Currently, the ancient city of Hierapolis still becomes one of the attractions attracting thousands of tourists.

Virtual life and death! Recently on many travel forums, the story of a tourist posting photos of starfish dying dry due to being taken ashore to take pictures of “virtual life” in Rach Vem, Phu Quoc has attracted a lot of attention. Most of the comments are outraged by the ignorant actions of some young people that lead to the undue death of the marine species that is the symbol of this sea. Getting starfish ashore has become a “habit” of some tourists. On websites, many accounts constantly share check-in pictures of celebrities who use starfish as virtual living tools without knowing that just a few dozen seconds from the water surface, the starfish will die now. Prof. Dr. Do Cong Thung, Chairman of the Scientific Council of the Institute of Marine Resources and Environment, said that starfish breathe through the legs and papillae (tiny particles spread all over the body). These tubular legs and papillae are equipped with a very thin layer of tissue, allowing gases to pass easily, whether inhaling oxygen (O2) or exhaling carbon dioxide (CO2), in a process known as is diffuse. Unlike fish with only two gills, the starfish is covered with papillae throughout the body. In other words, their “noses” or “gills” are scattered all over the body surface. When not in water, starfish not only cannot absorb the necessary oxygen. Therefore, they cannot remove carbon dioxide and carbon monoxide (CO) from the body. This leads to carbon dioxide and carbon monoxide poisoning and causes death. Most starfish can only hold their breath for less than 30 seconds. Sea stars, sea cucumbers and corals, are naturally born with fragile, fragile creatures. Just a light touch can hurt them. The act of bringing them out of the water is a brutal act of killing this endemic aquatic species. “When taken out of the water, starfish will die within about a minute. The act of catching starfish out of the water to take pictures is very dangerous. It threatens the life of this species. Beaches with starfish need to give warnings, otherwise starfish species will be in danger of scarcity and extinction, losing the value of marine habitat “, Prof.Dr Do Cong Thung said. And Mr. Nguyen Linh Ngoc, a marine conservation expert in Phu Quoc, said that many tourists take starfish out of the water to take pictures, then drop them right away. But when left in the sun on the shore, they die quickly. Starfish have no economic value like sea cucumber or seahorse. Starfish are normal seafood objects. It is not an ecological indicator animal of little scientific value. It is a crustacean that no one eats because it doesn’t have meat. Tourists like mainly the shape it looks like a star. In terms of marine conservation, there is also no regulation prohibiting the exploitation of starfish because this species is not included in the conservation list. But starfish create beautiful scenery for the marine environment, attracting huge visitors. Therefore, the protection of starfish mainly depends on the awareness of visitors as well as reminders of the resorts. An important role in the ecosystem Vietnam has 60 different species of starfish distributed along the coast from North to South, Nha Trang Bay alone has discovered 20 species belonging to 16 genera, 11 families and 4 orders. In Cat Ba, Hai Phong, a starfish beach with an area of ​​up to 5 hectares is home to shallow trench starfish and deep-trench starfish with a high density of about 20 individuals / m2. Starfish food is fish, snails, clams, squid, shrimp and other molluscs. Some starfish species have the ability to turn their stomachs out to cover large foods and then digest themselves outside of their bodies. Vietnam has species such as starfish, blue starfish, pillow starfish, crunchy starfish … Each different species has a certain role, contributing to the general ecosystem, especially creating continuity in the chain. Food that once this food chain is destroyed will have a little or no impact on an entire ecosystem. Mr. Le Chien, Head of Sasa Marine Life Rescue Center, said that touching, holding, touching and catching starfish and sea creatures ashore is extremely offensive. It is being strongly condemned in many countries around the world. When people touch marine organisms, bacteria and chemicals from sunscreen, soap … on their hands can attack directly on their soft tissue. Organisms that have never been exposed and that do not have immune systems to bacteria from humans will be severely affected, even if they may not die immediately. In addition, starfish are only capable of sun exposure for a certain period of time, so bringing them ashore is extremely dangerous. In addition, not all marine life is harmless to humans. If you touch the wrong starfish species, people can be burned, shocked and killed. Not to mention there are many other toxic species such as snail. This job is also playing with their lives and loved ones. Prof.Dr Do Cong Thung said, starfish is a key species (keystone species) in the ecosystem. They are omnivores that feed mainly on scavengers, molluscs, small fish, algae or organic residues. There are more than 1,900 species of starfish around the world, living in all depths of the oceans. They play a very important role in the organic circulation, operating the ecosystem in which they exist. Therefore, the absence or degradation of starfish can lead to the collapse of the marine ecosystem.

◎”Shield-2″ space missile

This mysterious space weapon is the guy in the picture above-the “Shield-2” space missile. It can be seen from the naming that this is a weapon that focuses on self-defense. Of course, the specific method of self-defense must be defined by the Soviets.

As shown in the figure above, the “Shield-2” space missile consists of four parts, from left to right are the solid fuel rocket engine, the spin attitude stabilization system, the warhead, and the seeker.

◎Close-up of the seeker and warhead of the “Shield-2” space missile

From the structural point of view, except for the fin-shaped spin attitude stabilization system, the structural composition of the “Shield-2” space missile is not much different from the common missile structure. Of course, the most interesting thing is the densely packed bullet warhead. The warhead of the “Shield-2” space missile consists of as many as 96 sub-munitions. The sub-munitions will spread out when approaching the target, forming a barrage to intercept the target. The killing method is hard kill. According to another report from Red Star TV, this submunition may also have a propulsion device, but Red Star TV did not further explain how its propulsion device works. The “Shield-2” space missile has some unknown secrets.

◎Diamond military space station model

The “Shield-2” space missile was developed for the “Salute-4” military space station, which was one of the Soviet military space stations. It was originally planned to enter space in the late 1970s, but the “Diamond” military space station project was cancelled. The launch of the “Salute-4” military space station was also cancelled, and the “Shield-2” space missile and “Shield-1” space cannon attached to the “Salute-4” space station also failed to enter space service.

◎”Shield-1″ 23mm space cannon

However, it is worth mentioning that the “Shield-1” 23mm space cannon entered space with the “Salute-2” space station in 1974, and conducted the only space thermal weapon launch test so far. The “Shield-1” 23mm space cannon is actually a space variant of the R-23M self-defense cannon equipped with the Tu-22 supersonic bomber. The “Shield-1” is installed at the front end of the “Salute-2” space station to offset it. The recoil produced by the guns in space affects the attitude of the space station. When the “Shield-1” guns are fired, the space station must turn on the thrusters opposite to the gun recoil to counteract the recoil.

In addition, the “Shield-1” space cannon is installed in a fixed manner, which means that when the “Shield-1” is fired, the attitude of the space station must be adjusted to aim at the target. The operation is more complicated, and it is only due to the efficiency of self-defense. In other words, “Shield-1” is obviously inferior to “Shield-2”, but it is a pity that “Shield-2” has never had the opportunity to test in space since its birth, and “Shield-1” was able to be used on the “Salute-2” space station. On the last day of the orbit, a test was fired in space. It is reported that a total of 20 shells were fired from the Shield-1 during the test, and all the shells entered the atmosphere and burned.

One of the most common methods is to use salt to wash fruits and vegetables. This is one of the most effective alternatives to washing fruit with vinegar. Illustration You can use iodized salt or granular salt as well. Mix the salt in the right amount of water, stir to dissolve the salt completely. Then let the vegetables and fruits soak for about 10 minutes and then take out, rinse with water. Note: This method should not be applied to thin-skinned fruits as this will damage the fruit. Wash the vegetables thoroughly by adding vinegar and lemon juice The experts point out that vinegar and lemon act as antiseptics and can also help remove wax or any pesticide left on the peel. Illustration Grapefruit seed extract is a potent anti-microbial as well as anti-fungal agent. Since grapefruit seed extract is a bit bitter and can be irritating, a whole large bottle of water spray only needs to use a small amount of about 10 drops. Use 1/2 to 2 glasses of water; 2 tablespoons of white vinegar; 2 teaspoons of lemon juice; 10 drops of grapefruit seed extract (optional) Let’s mix together and pour into a spray bottle. Spray on fruits and vegetables (except mushrooms) and let stand for a few minutes. Use your hands to gently rub if necessary then rinse.

According to the Sohu , the only snake species recorded in China is the coral snake (scientific name: Bungarus multicinctus). This species can kill people with venom less than 1 milligram, even the king cobra when confronted with them also have to “turn off the power”. Small body Coral snakes live in southern China, they mainly live near the water’s surface and eat fish, frogs, snakes, and rats. The average body length of an adult coral snake is from 1m to 1.8m. In appearance, the coral snake has a simple black and white color, the back has hexagonal scales, the alternating black and white rings stretching throughout the body, the black part is longer and more than the white. Unlike conventional snakes with a triangular head, the coral snake’s head is oval in shape and small. Coral snakes possess an easily recognizable appearance. Photo: Sohu Although coral snakes are venomous snakes, they are very shy and often active at night. They will run away quickly when disturbed, or hide their heads under their bodies if they feel bothered. Unless intimidated, coral snakes will not actively attack people. In addition, the two fangs of coral snakes are relatively small, the other teeth are not pointed, so they cannot bite through the human skin too deeply. Therefore, when a person is bitten, the pain will be relatively mild, even some people cannot feel it. But if the anti-poison serum is not injected in time, the person who is bitten will definitely not be cured. The venom is deadly To measure the toxicity of snake venom, LD50 (a lethal dose of 50%, a dose required to kill half of the individuals used as an experiment over a given experimental period) is used as a parameter indicator. Projection for toxicity measurement. According to the experimental data of coral snake venom, LD50 of coral snake venom to mice is 0.09-0.108 mg / kg (subcutaneous injection), 0.113 mg / kg (intravenous injection) and 0.08 mg / kg (intraperitoneal injection). LD50 of the mountain wind snake has a famous large venom at about 0.35mg / kg, but only equivalent to a quarter of the toxicity of coral snakes. Therefore, after comparing the LD50 values ​​of the known poisonous snakes, it was concluded that the coral snakes are the most poisonous snakes in China as well as in Asia, in addition they are ranked 8th on the rankings. rank of poisonous snakes in the world. This is the most poisonous snake species in China as well as in Asia, in addition, they are ranked 8th on the ranking of poisonous snakes in the world. Photo: Sohu In the early stage of being bitten by a coral snake, the small molecular weight α neurotoxin first binds to acetylcholine receptors at the neuromuscular junctions, preventing the transmission of neurotransmitters, causing Injured person shows drowsiness, body stiffness, drooling, muscle spasm and other reactions, the nerve mass at this time is reversible. Several hours later, a large amount of β-neurotoxin acts directly on the motor nerve’s pre-synaptic membrane, inhibiting the release of acetylcholine, causing skeletal muscle to lose its function of contracting and transform into constant paralysis, eventually leading to to respiratory failure. This process happened very quickly and violently. What to do if bitten by a coral snake? First, what needs to be explained here is that it is completely wrong to suck venom by mouth like in a drama, then the poison will go straight through the mouth and take the life of the smoker. Therefore, the best way is to take a picture of that snake or bring it to the hospital for identification and injection of anti-venom serum as soon as possible. Although the coral snakebite is not as deep as other species, when the toxicity develops, the patient will suffer extremely severe pain with death always imminent. Photo: Medihub If you have been bitten by a coral snake in the wild and cannot get help, you can burn the wound with fire. Theoretically, proteins and enzyme peptides (the main ingredient in coral snake venom) are inactivated in the presence of acids, alkalis, electrolytes and high temperatures. The main reason is that the coral snakes have short fangs and small amount of venom that can only bite into the shallow layers of the skin. Therefore, in an emergency, burn the wound skin into blisters. However, this method only works miraculously for the wound from coral snakes, not suitable for other poisonous snakes. In fact, poisonous snakes are not as scary as we often think. Except for the king cobra, most poisonous snakes are afraid of humans. So when you see snakes, take the initiative to stay away from them at least a stride, do not blindly raise snakes if you do not have the knowledge to avoid “drawing on the body”.

As it turns out, the act of killing a spider is not only a “bad omen” but also harms the home ecosystem. Even the cleanest houses have inhabited spiders. In the journal The Conversation, entomologist Matt Bertone and colleagues at North Carolina State University in the United States published a study of 50 homes in North Carolina and in each home they found spiders. According to Bertone, arachnids are important members of the inner human ecosystem. They are “omnivorous” predators and eat almost anything they catch: from a fly trapped in a window to a mosquito trying to suck human blood. Sometimes, the spiders eat their own kind. A house spider is watching for flies Many of the “victims” of spiders are potential vectors of disease. There is even a species of jumping spider in Africa that only likes to eat blood-sucking insects in the house. So when you kill a spider by hand, you accidentally “kill” a “soldier” to destroy the pathogen in your home. The indoor spiders are not the venomous monster spiders in Australia that we still see in newspapers. During his research, Bertone often found only common indoor spiders like Pholcidae * and the most harmless arthropods of the family Theridiidae **. Both of these spiders spread silk where they live. Spiders Pholcidae sometimes leave their webs to hunt and eat other spiders around. I don’t want to see this scene in my house at all, what about you guys? The truth is that most spiders are poisonous, but the venom of most of them is not strong enough to harm humans. The spider’s fangs are also often too weak to bite through the skin. Hollywood movies have sprinkled us in the head with spiders attacking us while we are off guard. However, in contrast to these movie “myths”, the spiders almost never crawl past a sleeping person. The act of snoring, puffing, or even ordinary human breathing is enough to scare away the vertebrates in the home. Furthermore, spiders are afraid of humans and always try to avoid us. We are far more dangerous to them than they are to us. Cases of spider bites are extremely rare. The scene is haunting for many people Although there are some highly toxic species like the Black Widow, they very rarely bite humans and even so, these bites rarely cause serious medical disorders. If you have phobia or simply don’t want to see spiders crawling around where you live, follow the scientists’ recommendations: instead of killing arthropods, catch them in one. box and drop off the road. The spiders themselves will find a new place and we do not have to carry the “killing” karma. *: Pholcidae are arachnids in the arachnid family of the suborder Araneomorphae. They have a body length of 2–10 mm and their legs can be up to 50 mm long. They can be found on every continent in the world except Antarctica. They weave a messy, irregular mesh. Spider webs are woven in wet and dark areas, in caves and under rocks, and abandoned animal caves. Do these spiders look familiar? Spider webs do not have cohesive properties, but their unusual insect trap structure makes it difficult for prey to escape. Spiders quickly cover their prey with spider webs and then inflict a poisonous bite to kill the prey. The prey can be eaten or stored immediately thereafter. **: Theridiidae is a family of arachnids of the order Araneae. This family has 109 genera, a total of 2295 species. The spider Theridiidae is usually reclusive, almost harmless and extremely gentle.

Ly Hai – Minh Ha and her children at the press screening last night (April 14) in Ho Chi Minh City.

The work is in the series Turn over which has brought Ly Hai many successes in previous versions such as Flip, Flip Flips: Films, Flipped sides: Three guys flipped and flipped: The house has guests. According to the crew’s earlier revelation, Turn over: 48 hours is a work in the action genre – journey has a huge investment with scenes “not inferior to hollywood”. The film revolves around a family’s escape across the West before the gang’s pursuit for a treasure with the participation of actors Vo Thanh Tam, Oc Thanh Van, Huynh Dong, Mac Van Khoa, Ha. Brother…

Director Li Hai said, he did not expect his film to create “explosion” in revenue. “I only have a week to recoup my capital before a series of other Vietnamese films hit theaters such as ‘Tinh Tý’, ‘Guardian Angel’, ‘1990’ and other Hollywood blockbusters” – Li Hai said.

Poster “Flip: 48h” by Li Hai.

This producer also expressed concern when witnessing a series of recently released Vietnamese films “premature”, heavy losses and heavily affected by mixed comments. According to Ly Hai, in addition to the content, acting, acting and effects, a work hits theaters is greatly influenced by the public’s comments on social networks and forums. Public opinion really greatly affects the revenue and psychology of the audience before they choose the works to enjoy.

“Comments and comments on a film depend on each person’s point of view and level of perspective. But unwilling, heavy, outrageous comments can kill a movie and make the producer have. could fall into bankruptcy “- Ly Hai concluded.

According to information from the issuer, Turn over: 48 hours There will be a premiere of the Hanoi press tonight (April 15) and is scheduled to open to the audience nationwide on April 16. As planned, the film will be released in the US, Canada, Australia in June next.